Stoker



May 16. 1933. 7 1,909,236

c. J. SURDYKOWSKI, NOW BY JUDICIAL CHANGE 0F NAME c. J. SURDY STOKER Filed March 1, 1930 k T Tl IMA M;

Patented May it, 1933 UNITED STATES PATENT OFFICE.

CHARLES J". SURDYKOWSKI, NOW BY JUDIGIAL'CHANGE OF NAME CHARLES J. SURDY,

OF NEW YORK, N. Y., ASS-IGNOR T'O 'IION OF DELAWARE s'roxnn I Application filed March 1, 1930. Serial K01 132382.

My invention relates generally to improvements in stoking mechanism and more particularly to improvements in the fuel trough of a locomotive stoker.

One object of my invention is to provide the tender trough with means whereby fuel is prevented from boiling or being forced over the forward end of the trough.

Another object of my invention is to provide the tender trough with means which will tend to keep the large lumps of fuel in engagement with the crushing mechanism.

Other objects of my invention will appear from the following description taken in con nection with the accompanying drawing, which shows the preferred embodiment of my invention, and wherein Fig. 1 is a central vertical longitudinal section through the forward end of a portion of a locomotive tender, and fuel trough showing the invention in place;

Fig. 2 is a detail plan View of Figure 1 with portions broken away;

Fig. 3 is a vertical section taken on the line 33 of Figure 1 in the direction of the arrows. I

Prior to this invention no attempt has been made to eliminate the continual loss of fuel due to the boiling or forcing of fuel over the forward end of the trough. On a long run this quantity of fuel lost may be considerable. In constructions wherethe space between the forward end of the trough and the tender deck is small and the loss of fuel therethrough is small, the fuel boils or is urged on the tender deck, and the collection of fuel thereon is troublesome and annoying since it must be shoveled back into the trough or into the bin by the fireman. This invention, which will be described in detail, effectively remedies these evils. I

In the drawing the tender is indicated genorally at 10, its frame at 11 and its fuel receptacle or bin at 12. The bottom of the pin 12 is provided with a central longitudinal opening 13 through which fuel is adapted to pass to the conveyor trough 14. The coal bin is provided with the usual slope sheets, inclined downwardly toward the trough 14 at the sides and back thereof, so that coal will move downwardly along the slope sheetsinto the trough. Removable cover sections 15 may beslid forward, or'moved from covering position to permit entry of fuel into the trough 14 as the supply becomes depleted.

The front end of the trough 14 is equipped with a projection16-detachably securedto the front wall 17 of thetrough and communicates with a restricted opening in said front wall. F ormed'with the projection 16 is a spherical flange 18 adapted to be received in a spherical STQKER COMPANY, INC., A CORPORA- portion of the verticallysplitcoupling member 19; carried by the tubular section 20.

Suitablemechanism is employed for crushing and for conveying fuel, including a screw conveyor 21 disposed in the trough l4 and eX- tending forwardly through the projection 16 and spherical flange 18, a conveyor screw 22 in the tubular section 20 flexibly connected and a crushingabutment 24mounted at the forward end of the trough 14 for engaging the larger lumps of fuel to crush themto a proper size for firing. -The uppermost crushing teeth of the abutment 24 are disposed slightly above the normalheight of the fuel being advanced toward the abutment 24. a The bars or rods 25 extend v transversely across the upper portion of the trough 14 and are suitably fastened to the upper side edges of the trough. For purposes of illustration the rods 25 are shown in the drawing as being threaded at their ends and extending through openings in the upper side edges of the trough, and being'secured in place by means of the nuts 26. The rods 25 are spaced at intervals across the forward end of the trough and are preferably parallel with the front Wall 17 and are disposed in a horizontal plane above the plane of the uppermost teeth of the crusher abutment. The number of rods and the spacing may be varied as may be required by conditions of operation. By means of the rods '25 the larger lumps of fuel which have a tendency to boil or to be urged over the top of the crusher plate because they are not adapted to be easily engaged between the crusher and the screw. are held down and forced into engagement with the crusher by withthe screw 21 as by an universal joint 23 means of the forward impelling force of the 11.00

screw. The rods prevent the large lumps of fuel from taking the path of least resistance, which would be up over the top of the crusher plate, and subjects them to the action of the crusher. 7

While I have illustrated and described a particular construction embodying my invention, I do not wish to be understood as intending to limit it thereto as the same may be variously modified and altered Without departing from the spirit of the invention, as by substituting plates or other means for accomplishing the objects of the invention for the rods shown in my preferred form of con struction.

I claim:

In a stoking mechanism, the combination of a trough having a fuel receiving opening, a screw mounted in said trough for advancing fuel therein from one end to and beyond the opposite end, a crushing abutment mounted v at the last named end of the trough and ineluding crusher teeth disposed above the screw, the uppermost teeth of the abutment positioned in a horizontal plane above the normal height of the fuel being advanced toward the abutment, and transverse rods horizontally aligned in the fuel receiving opening of the trough adjacent but spaced rearwardly from said teeth and extending across the trough and secured to opposite sides thereof, said rods being separate and apart from said teeth and disposed in a horizontal plane above the plane of said uppermost teeth of the abutment and arranged to resist the up Ward thrust of the fuel immediately rearward of the crushing teeth, and said rods having a curved convex surface free from crushing teeth facing that portion of the screw flight which acts with said rods to lever lumps of fuel into the zone of action of the crushing abutment.

In testimony whereof I aflix my signature;

CHARLES J. SURDYKOWSKI. 

